Finding the Fourth Proportional to 13,514,811.84, 18,650,443.68 and 7,403,457.60
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Solution
The fourth proportional to 13,514,811.84, 18,650,443.68 and 7,403,457.60 is: 10,216,773.32
Step by Step Solution
- Step 1: Write the proportion equation
13,514,811.84 : 18,650,443.68 = 7,403,457.60 : x - Step 2: Convert to fraction form
13,514,811.84/18,650,443.68 = 7,403,457.60/x - Step 3: Cross multiply
13,514,811.84x = 18,650,443.68 × 7,403,457.60 - Step 4: Simplify right side
13,514,811.84x = 138,077,769,006,067.95 - Step 5: Solve for x
x = 138,077,769,006,067.95/13,514,811.84 - Step 6: Final answer
x = 10,216,773.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.